| 摘要 |
<p>PURPOSE:To avoid a use of a wrong discrimination signal, by adding the discrimination signal showing an address or the like to one unit of a digital video signal and at the same time adding an error correction coee to said discrimination signal. CONSTITUTION:A horizontal period (1H) of a digital video signal produced by sampling and coding a video signal is supplied to a multiplexer 2 to be divided into two channels. These channels are converted into the data having a data lacking period through the time axis compressing circuits 3 (3a, 3b) to be added with an error correction code by the error correction encoders 4 (4a, 4b), and receive an addition of a synchronous signal and a disrimination code plus a block coating by the record processors 5 (5a, 5b) and in said lacking period. The output of the processor 5 is supplied to a multiplexer 6 to be discributed to 4 channels and then extracted to the output terminals 8 (8a-8b) via the record amplifiers 7 (7a-7d) respectively.</p> |
